From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42762) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xqgqi-0002j1-Mn for qemu-devel@nongnu.org; Tue, 18 Nov 2014 06:21:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xqgqc-0002bB-Gc for qemu-devel@nongnu.org; Tue, 18 Nov 2014 06:21:32 -0500 Received: from mx1.redhat.com ([209.132.183.28]:55935) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xqgqc-0002b7-8D for qemu-devel@nongnu.org; Tue, 18 Nov 2014 06:21:26 -0500 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id sAIBLPcj012488 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Tue, 18 Nov 2014 06:21:25 -0500 From: Max Reitz Date: Tue, 18 Nov 2014 12:21:15 +0100 Message-Id: <1416309679-333-3-git-send-email-mreitz@redhat.com> In-Reply-To: <1416309679-333-1-git-send-email-mreitz@redhat.com> References: <1416309679-333-1-git-send-email-mreitz@redhat.com> Subject: [Qemu-devel] [PATCH v2 2/6] block: Add AioContextNotifier functions to BB List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , Paolo Bonzini , Markus Armbruster , Stefan Hajnoczi , Max Reitz Because all BlockDriverStates behind a single BlockBackend reside in a single AioContext, it is fine to just pass these functions (blk_add_aio_context_notifier() and blk_remove_aio_context_notifier()) through to the root BlockDriverState. Signed-off-by: Max Reitz Reviewed-by: Paolo Bonzini --- block/block-backend.c | 18 ++++++++++++++++++ include/sysemu/block-backend.h | 8 ++++++++ 2 files changed, 26 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index 89f69b7..7a7f690 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -624,6 +624,24 @@ void blk_set_aio_context(BlockBackend *blk, AioContext *new_context) bdrv_set_aio_context(blk->bs, new_context); } +void blk_add_aio_context_notifier(BlockBackend *blk, + void (*attached_aio_context)(AioContext *new_context, void *opaque), + void (*detach_aio_context)(void *opaque), void *opaque) +{ + bdrv_add_aio_context_notifier(blk->bs, attached_aio_context, + detach_aio_context, opaque); +} + +void blk_remove_aio_context_notifier(BlockBackend *blk, + void (*attached_aio_context)(AioContext *, + void *), + void (*detach_aio_context)(void *), + void *opaque) +{ + bdrv_remove_aio_context_notifier(blk->bs, attached_aio_context, + detach_aio_context, opaque); +} + void blk_io_plug(BlockBackend *blk) { bdrv_io_plug(blk->bs); diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 0c46b82..d9c1337 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -135,6 +135,14 @@ void blk_op_block_all(BlockBackend *blk, Error *reason); void blk_op_unblock_all(BlockBackend *blk, Error *reason); AioContext *blk_get_aio_context(BlockBackend *blk); void blk_set_aio_context(BlockBackend *blk, AioContext *new_context); +void blk_add_aio_context_notifier(BlockBackend *blk, + void (*attached_aio_context)(AioContext *new_context, void *opaque), + void (*detach_aio_context)(void *opaque), void *opaque); +void blk_remove_aio_context_notifier(BlockBackend *blk, + void (*attached_aio_context)(AioContext *, + void *), + void (*detach_aio_context)(void *), + void *opaque); void blk_io_plug(BlockBackend *blk); void blk_io_unplug(BlockBackend *blk); BlockAcctStats *blk_get_stats(BlockBackend *blk); -- 1.9.3